keepass2android/src/keepass2android-app/Resources/drawable/grouplistitem_selector.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
  <item android:state_activated="true"
        android:drawable="@drawable/checked_drawable" />
  <item>
    <color android:color="#0000" />
  </item>
</selector>
<!--
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_checked="true" android:drawable="@drawable/checked_drawable" />
  <item android:state_checked="false" android:drawable="@drawable/listitem_unchecked_drawable" />
  <item android:state_checked="false" android:drawable="@drawable/listitem_unchecked_drawable" /> 
    
</selector>
-->